B
i9
USER MANUAL
CONTENTS
1. Introduction
2. Unpacking
3. Low Impedance or 70.7/100V distributed line operation.
4. Amplification and Power Selection (Low Impedance Mode)
4.1 Connectors & Cabling for Low Impedance Operation
5. Voltage and Power Selection (Distributed Line Operation)
Connectors and Cabling for Distributed Line Operation
5.1
6. Polarity Checking
7. Equalisation
8. Dimensions
9. Performance Data
10. Technical Specifications
11. Rigging & Suspension
11.1 General Safety Advice
11.2 i9Y - Wall mount Bracket
11.3 i9 MAB- Multiple Angle Bracket
12. Service Parts & Accessories
13. Warranty
14. Declaration of Conformity
2
1. Introduction
The Tannoy i9 installation loudspeaker is designed for use in applications requiring high
quality music and speech, where wide and controlled coverage is required.
The i9 comprises four 130 mm (5”) low frequency drivers and three 25mm (1”) high
frequency drivers. The LF and HF sources are positioned as line source. The coupling
effects in the vertical plane result in a narrow and controlled vertical coverage pattern to
below 500Hz. The direct radiating drivers provide extremely wide horizontal coverage.
The complex frequency shading and integration techniques employed in the internal
passive crossover network result in a smooth and uniform frequency response.
The shallow cabinet profile of the i9 loudspeaker allows flexible and discreet installation
close to a wall or ceiling. Installation is made simple with a range of flexible mounting
and flying hardware.
The controlled dispersion characteristics of the loudspeaker (120°×60°) allows the i9 to
be used in highly reverberant environments, by directing the sound into the desired
space, whilst minimising reflections from adjacent walls or ceilings. A 5° downward tilt
angle on the front baffle allows the i9 to be used close to ceilings without sacrificing
vertical coverage
Located in the enclosure is a Tannoy THP60 multi-tap transformer for distributed-line
operation. The transformer provides high system sensitivity, a wide bandwidth and
dynamic range, with very low insertion loss.
The i9 can easily be switched from operating either as a low impedance (8Ω) or
100V/70.7V distributed-line system, this selection being made (along with the
transformer tapping options) via a single rotary switch located on the rear termination
panel for quick and simple commissioning.
For applications requiring extended low frequency enhancement, a range of Tannoy
sub-bass systems are available and can be used in conjunction with the i9.
2. Unpacking
Every Tannoy i9 product is carefully tested and inspected before being packaged and
leaving the factory. After unpacking your loudspeaker, please inspect for any exterior
physical damage, and save the carton and any relevant packaging materials in case the
loudspeaker again requires packing and shipping. In the event that damage has been
sustained in transit, notify your dealer immediately
3. Low Impedance or 70.7/100V distributed line operation?
The i9 can be used as either an 8Ω low impedance or 70.7/100V distributed-line
system. The operation mode is selectable via a single switch located on the rear of the
cabinet.
Low impedance mode is recommended if the cable runs are relatively short and the
number of speakers is small. If, on the other hand, the cable runs are long and the
number of speakers large, then a distributed line system is ideal.
The main advantage when operating in low-impedance mode, is the wider frequency
and dynamic range the speaker is able to deliver. If, however, the cable runs are long
then the sound quality may be compromised due to the increase in cable resistance and
the resulting power losses. To keep the load to the amplifier manageable, it is also
recommended that a small number of speakers be used, thus avoiding complex
series/parallel combinations.
3
When the number of speakers is large over long cable runs, it is recommended that a
distributed (70.7V/100V) system be used. For distributed line, the cable need not have a
large cross sectional area as for low impedance, resulting in savings in cable cost. All
speakers are placed in parallel with the output of the amplifier, allowing easy
installation. Please refer to section 5.2 for installation guidelines. The wattage tappings
can be individually adjusted, giving more flexibility within an installation.
4. Amplification and Power Selection (Low Impedance Mode)
As with all professional loudspeaker systems, the power handling is a function of voice
coil thermal capacity. Care should be taken to avoid running the amplifier into clip
(clipping is the end result of overdriving any amplifier). Damage to the loudspeaker will
be sustained if the amplifier is driven into clip for any extended period. Headroom of at
least 3 dB should be allowed. When evaluating an amplifier, it is important to take into
account its behaviour under low impedance load conditions. A loudspeaker system is
highly reactive and with transient signals it can require more current than the nominal
impedance would indicate.
Generally, higher power amplifier running free of distortion will do less damage to the
loudspeaker than a lower power amplifier continually clipping. It is also worth
remembering that a high powered amplifier running at less than 90% of output power
generally sounds a lot better than a lower power amplifier running at 100%. An amplifier
with insufficient drive capability will not allow the full performance of the loudspeaker to
be realised.
It is important when using different manufacturers amplifiers in a single installation that
they have very closely matched gains, the variation should be less than +/-0.5dB. This
precaution is important to the overall system balance when only a single
compressor/limiter or active crossover is being used with multiple cabinets; it is
therefore recommended that the same amplifiers be used throughout.
When running low impedance loudspeakers in parallel, care must be taken not to allow
the impedance to drop too low, as damage may be sustained by the amplifier. Most low
impedance amplifiers will be able to handle loads of 2Ω to 8Ω. This means that when
using a 4Ω amplifier, 2 × i7 Contour may be connected in parallel per input, although
care should be taken as impedance varies with frequency and at some frequencies the
impedance will drop to below 8Ω. For examples simple series/parallel combinations,
please see Figures 4b, 4c and 4d.
Figure 4b: Simple parallel connection: 4Ω.
Figure 4c: Simple series
Ω
connection: 16
.
4
Ω
Figure 4d: Series Parallel Combination: 8
When operating in low impedance mode the rotary switch on the back of the cabinet as
shown in Figure 4a, below should be set to ‘8 ohm’
D
C
B
OFF
8ohm
A
Transformer Tappings
100V
70V
7.5W 15W
A
B
30W
15W
C
60W
30W
D
60W
Figure 4a
4.1. Connectors & Cabling for Low Impedance Operation
The i9 is fitted with 4-pole Neutrik Speakon connectors. Speakon has the following
advantages over EP and XLR type connectors: All terminations are solderless; this
makes life easier at the time of installation or when field servicing is required. Contacts
will accept 6 sq. mm wire with an outside diameter of up to 15mm and a current rating
of 30 Amps. The pins of the 2 Speakon sockets identified input/output on the rear of the
input panel are paralleled within the enclosure. Tannoy have adopted the conventional
wiring standard for the i9 product :-
Pin 1+ is Positive
Pin 1- is Negative
For a worldwide list of Neutrik distributors see http://www.neutrik.com/
5
Cable choice consists mainly of selecting the correct cross sectional area in relation to
the cable length and the load impedance. A small cross sectional area would increase
the cables’ series resistance, inducing power loss and response variations (damping
factor).
Connectors should be wired with a minimum of 2.5 mm
2
(13 gauge) cable. This will be
perfectly satisfactory under normal conditions. In the case of very long cable runs the
wire size should exceed this, refer to the following table for guidance: -
CABLE
RUN (m)
10 2.5
25 2.5
50 2.5
100 2.5
C.S.A. OF
EACH
CONDUCTOR
(mm2)
4
6
4
6
4
6
4
6
AWG
13
11
9
13
11
9
13
11
9
13
11
9
CABLE
RESISTANCE
Ω
0.13
0.08
0.05
0.33
0.21
0.13
0.66
0.41
0.26
1.31
0.83
0.52
% POWER
LOSS
INTO 4Ω
LOAD
3.9
2.5
1.6
9.3
6.1
3.9
17.0
11.4
7.5
29.1
20.5
14.0
5. Voltage and Power Selection (Distributed Line Operation)
When using 70.7V or 100V distributed-line systems, the transformer can be tapped at
60W, 30W and 15W, with an extra 7.5W tapping for 70.7V line systems. The taps are
selected via the rotary switch shown in Figure 4a.
When the relevant voltage tappings have been selected, add the individual power in
Watts at all speakers and select and amplifier with a rating equal to or exceeding the
total power in Watts. All of the transformer primaries should be connected in parallel to
the output of this amplifier. If for example, you select the 7.5-watt transformer tap, it
means that at full rated amplifier output the speaker will receive the full 7.5 watts. If the
amplifier gain is reduced, each speaker will receive a proportional amount of power,
maintaining the overall system balance.
It is recommended that a generous power safety margin (3dB of headroom) be left so
that the system does not have to operate continuously at its full rated output power
In order to comply with relevant fire safety regulations (i.e. BS 5839:1998), it is required
that in the event of fire, that failure of the circuit to which the loudspeaker is connected
does not occur before evacuation of the building is complete. Suitable measures include:
a) use of terminal blocks (for connection to primary) with a melting point of not less
than 650°C, for example constructed from ceramic materials;
c) use of terminal blocks of a lower melting point but protected with thermal insulation;
d) use of terminal blocks such that, on melting, an open-circuit or a short-circuit does
not occur.
dB LOSS
INTO 4Ω
LOAD
0.17
0.11
0.07
0.42
0.27
0.17
0.81
0.53
0.34
1.49
1.00
0.65
% POWER
LOSS
INTO 8Ω
LOAD
2.0
1.3
0.8
4.9
3.1
2.0
9.3
6.1
3.9
17.0
11.4
7.5
dB LOSS
INTO 8Ω
LOAD
0.09
0.06
0.04
0.22
0.14
0.09
0.42
0.27
0.17
0.81
0.53
0.34
6
5.1 Connectors and Cabling for Distributed Line Operation
Connections are identical to those used in low impedance mode, via the4-pole Neutrik
Speakon connectors (see section 4.1):
Pin 1+ is Positive
Pin 1- is Negative
Distributed line systems are much more efficient in power transfer and do not require as
large cables as in low impedance mode. This can create significant savings in cable
costs. Refer to the following table for guidance in cable length versus power loss. A
power loss of 11% amounts to a loss of 0.5db, and 50% to a loss of 3dB.
CABLE
RUN (m)
100 1
500 1
1000 1
5000 1
C.S.A. OF
EACH
CONDUCTO
R (mm)
1.5
2.5
1.5
2.5
1.5
2.5
1.5
2.5
AWG CABLE
17
15
13
17
15
13
17
15
13
17
15
13
RESISTAN
CE Ω
3.3
2.1
1.3
16.6
10.4
6.6
33.2
20.8
13.1
166
104
65.7
% POWER
LOSS
INTO
70V 60W
100V N/C
4.8
3.1
2.0
20.3
13.7
9.1
33.7
24.1
16.7
71.8
61.4
50.1
Distributed line operation is a good choice when so many speakers are used that the
impedance would be too low to run from a low impedance amplifier
% POWER
LOSS
INTO
70V 30W
100V 60W
2.4
1.5
1.0
11.1
7.2
4.7
19.9
13.5
9.0
55.5
43.8
33.0
% POWER
LOSS
INTO
70V 15W
100V 30W
1.2
0.8
0.5
5.9
3.8
2.4
11.1
7.2
4.7
38.4
28.1
19.8
% POWER
LOSS
INTO
70V 7.5W
100V 15W
0.6
0.4
0.2
3.0
1.9
1.2
5.9
3.8
2.4
23.7
16.3
11.0
For distributed line (70.7/100V) operation, the rotary switch can be adjusted to select
the wattage required. The table below shows the rotary positions (moving clockwise) for
70.7 and 100V operation.
Position
(Clockwise)
A
B
C
D
70.7V line
Watts
100V line
Watts
7.5 15
15 30
30 60
60 N/C
Figure 5b demonstrated the method of connecting the speakers to a distributed line
amplifier.
Figure 5b
7
.
6. Polarity Checking
It is most important to check the polarity of the wiring. A simple method of doing this
without a pulse based polarity checker for LF units is as follows: Connect two wires to
ve
the +
and -ve terminals of a PP3 battery. Apply the wire that is connected to the +ve
terminal of the battery to the speaker cable leg which you believe to be connected to the
red speaker terminal and likewise the -
ve
leg of the battery to the black speaker terminal.
If you have wired it correctly, the LF drive units will move forward, indicating the wiring
is correct. All that remains now is to connect the +
the amplifier and the -ve lead to the -ve terminal on the amplifier. If however the LF
drivers move backwards, the input connections need to be inverted.
If problems are encountered, inspect the cable wiring in the first instance. It should also
be noted that different amplifier manufacturers utilise different pin configurations and
polarity conventions, if you are using amplifiers from more than one manufacturer,
check the polarity at the amplifiers as well as the loudspeakers.
7. Equalisation
The i9 is designed to need no equalisation or correction to overcome system limitations.
As a result, it will only need equalisation to compensate for difficult acoustic
environments.
Excess equalisation can reduce system headroom, and introduce phase distortion
resulting in greater problems than it cures. If equalisation is required then it should be
applied gently and smoothly. Violent equalisation will be detrimental to the overall sound
quality. If the loudspeakers were being used consistently at high levels it would be
beneficial to introduce a high-pass filter at 50 - 85Hz to protect the loudspeaker from
any unnecessary subsonic frequencies.
8. Dimensions
ve
speaker lead to the +ve terminal on
D
C
OFF
B
8ohm
A
Transformer Tappings
100V
70V
15W
7.5W
30W
15WAB
C 60W30W
60WD
9
8
!
11. Rigging & Suspension
11.1 General Safety Advice
The Tannoy Professional hardware covered in this guide has been designed to offer
quick, simple, cost effective and secure solutions for mounting specifically the Tannoy i9
Professional loudspeaker.
This hardware has been designed and manufactured with a high safety load factor for its
specific role. To ensure the safest possible use of the hardware covered in this guide, it
must be assembled in strict accordance with the instructions specified. The information in
these manuals relating to the assembly and the safe use of these accessories must be
understood and followed. The installation of Tannoy Professional loudspeakers using the
dedicated hardware should only ever be carried out by fully qualified installers, in
accordance with all the required safety codes and standards that are applied at the place
of installation.
WARNING: As the legal requirements for flying change from country to country, please
consult you local safety standards office before installing any product. We also
recommend that you thoroughly check any laws and bylaws prior to commencing work.
Tannoy Professional hardware has been designed for use with specific Tannoy
Professional loudspeakers, and is not designed or intended for use with any other Tannoy
Professional products, or any other devices. Using Tannoy Professional hardware for any
purpose other than that indicated in this guide is considered improper use. Such use can
be very dangerous as overloading, modifying, assembling in anyway other than that
clearly stated in the manual, or damaging Tannoy Professional hardware will compromise
safety.
The component parts of any Tannoy Professional hardware device must only be
assembled using the accessory kits supplied and in strict compliance with the user
manual. The use of other accessories or non-approved methods of assembly may result in
an unsafe hardware system by reducing the load safety factor. Welding, or any other
method of permanently fixing hardware components together or to the integral fixing points
in the cabinet should never be used.
Whenever a Tannoy Professional loudspeaker is fixed to a surface using a Tannoy
Professional hardware device, the installer must ensure that the surface is capable of
safely and securely supporting the load. The hardware employed must be safely, securely,
and in accordance with the manual, attached both to the loudspeaker and to the surface in
question, using only the fixing holes provided as standard and covered in the manual.
Secure fixings to the building structure are vital. Seek help from architects, structural
engineers or other specialists if in any doubt.
All loudspeakers flown in theatres, nightclubs, conference centre or other places of work
and entertainment must, be provided with an independent, correctly rated and securely
attached secondary safety – in addition to the principle hardware device. This secondary
safety must prevent the loudspeaker from dropping more than 150mm (6”) should the
principle hardware device fail.
11
11.2 i9Y - Wall mount Bracket
g
Ë(2)
Å(1)
Only the screws, fasteners, and washers
specified on figure 1. Should be used to
assemble the i9Y bracket
Fig 2.
Fig 1.
The Main body of the bracket (1) should be fixed first to the wall in the desired location using
all six fixing points. Secure fixings to the building structure are vital; ensure the structure will
accept the combined load of the speaker and bracket. The top portion of the bracket (2) is
fixed to the main body using the bolt provided in one of the four fixing points shown, according
to the desired angle. Fine-tuning of this angle is achieved by sliding the top part of the bracket
in the slot shown in fig1.
The loudspeaker can then be attached to the bracket as shown using the fixing hardware
provided. If no downward angle is desired, the i9Y bracket can be assembled as shown in
fig2. before attaching the loudspeaker to the bracket.
3. shows the assembled bracket & speaker.
Fi
Í Î
Ï
Ð
Fig 4.
Fig 5.
Fig 3.
The i9’s proximity to the wall can be adjusted to allow aiming of
the loudspeaker in the horizontal plane (fig 4 & 5).
12
11.3 i9 MAB- Multiple Angle Bracket
f
The i9 MAB is designed to provide a number of flexible mounting angles when the i9 is
suspended from overhead cables.
The i9 MAB is attached to the cabinet as shown with the supplied hex
socket screws and washers supplied. Remove the original M10 counter
sunk screws from the top and bottom of the i9, position the bracket with
the marked hanging holes to the top of the cabinet, then replace these
counter sunk screws with the hardware supplied.
To achieve the desired angles as marked on the bracket, only use pairs o
holes adjacent to one another.
It is imperative for safety reasons that two threaded and correctly rated
‘Quick Link’ fasteners linked to two independently fixed straps are used
per cabinet.
The correct method is shown in the figures opposite.
A local building inspector should approve any overhead installations.
The following angles can be achieved:-
17,18,20,22,25,30,35,40,47,57,71,87 and 105 degrees from vertical.
13
12. i9 Service Parts & Accessories
Part Number Description
7900 0657 LF Driver Type 1277
7900 0674 High frequency Unit
7300 0853 Crossover Kit
8001 3020 i9Y - Wall mount Bracket (Black)
8001 3030 i9Y - Wall mount Bracket (White)
8001 3070 i9 MAB- Multiple Angle Bracket (Black)
8001 3080 i9 MAB- Multiple Angle Bracket (White)
8001 1930 Tannoy TDX2 Digital System Controller 90 – 250V UK
8001 1940 Tannoy TDX2 Digital System Controller 90 – 250V EUR
8001 1950 Tannoy TDX2 Digital System Controller 90 – 250V USA
13. Warranty
No maintenance of the i9 loudspeaker is necessary.
All Tannoy professional loudspeaker products are covered by a 5-year warranty from
the date of manufacture subject to the absence of misuse, overload or accidental
damage. Claims will not be considered is the serial number has been altered or
removed. Work under warranty should only be carried out by a Tannoy Professional
dealer or service agent. This warranty in no way affects your statutory rights. For further
information, please contact your dealer or distributor in your country. If you cannot
locate your distributor, please contact Customer Services, Tannoy Ltd at the address
given below.
Customer Services
Tannoy Ltd.
Rosehall Industrial Estate
Coatbridge
Strathclyde
ML5 4TF
Scotland
Telephone: 01236 420199 (National)
+44 1236 420199 (International)
Fax: 01236 428230 (National)
+44 1236 428230 (International)
E-Mail: prosales@tannoy.com
DO NOT SHIP ANY PRODUCT TO TANNOY WITHOUT PREVIOUS AUTHORISATION
Our policy commits us to incorporating improvements to our products through
continuous research and development. Please confirm current specifications for critical
applications with your supplier.
14
14. Declaration of Conformity
B
The following apparatus is/are manufactured in the United Kingdom by
Tannoy Ltd of Rosehall Industrial estate, Coatbridge, Scotland, ML5
4TF and conform(s) to the protection requirements of the European
Electromagnetic Compatibility Standards and Directives relevant to
Domestic Electrical Equipment. The apparatus is designed and
constructed such that electromagnetic disturbances generated do not
exceed levels allowing radio and telecommunications equipment and
other apparatus to operate as intended, and, the apparatus has an
adequate level of intrinsic immunity to electromagnetic disturbance to
enable operation as specified and intended.
Details of the Apparatus: Tannoy Contractor Loudspeaker
Model Number: i9
Associated Technical File: EMCi9
Applicable Standards: EN 50081-1 Emission
EN 50082-1 Immunity
Electrical Safety: EN 60065
Signed:
Position: Engineering Director – Professional Products
Tannoy Professional
Date: 27/01/2003
For Tannoy Ltd
15
B
Tannoy Loudspeakers are manufactured
in Great Britain by :
Tannoy Ltd, Rosehall Industrial Estate, Coatbridge,
Strathclyde, ML5 4TF, SCOTLAND
Telephone: +44 (0)1236 420199 Fax: +44 (0)1236 428230
Tannoy North America Inc, Suite 1. 335 Gage Avenue, Kitchener, Ontario, CANADA, N2M 5E1
Telephone: (519) 745 1158 Fax: (519) 745 2364
Tannoy Nederland BV, Anthonetta Kuijlstraat 19, 3066 GS, Rotterdam THE NETHERLANDS
Telephone: (010) 2860554 Fax: (010) 2860431
Issue 1.0 Part No. 0481 0389
GH January 27, 2003
16
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